baber/WOPTO huggingface dataset:
Patent GB-401726-A (GB)
Title: Improvements in plants for use in burning cement or like materials
IPC: F27B7/20
Filed: 1932-05-18
Abstract: 401,726. Rotary cement kilns. BORCH, N. S., 28, Vendersgade, Copenhagen. May 18, 1932, No. 14195. [Class 51 (ii).] Raw cement material is passed, before entering a rotary kiln 1, through a preheater 2 traversed by the waste gases from the kiln and having a charge supporting and conveying bed comprising an inclined series of rotary rollers 3 between which are disposed stationary guides 4. The rollers are formed of a number of discs spaced apart on the driving shafts to provide spaces through which the gases pass downwardly to collecting pipes 8, 9, 10 leading to the outlet flue 11. The spaces between the discs are kept free by cleaning brushes or scrapers. The dust carried through the bed by the gases collects in chambers 12, 13, 14, and may be removed by a conveyer 15. Fig. 3 shows a modification in which the upper part of the roller bed is on a higher plane than the lower part and is enclosed by a partition 17 ; in this construction, the gases which pass downwardly through the lower part of the bed are collected in a flue 20 from which they flow upwardly through the upper part of the bed and escape by the outlet 21.
Patent GB-282284-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B75/02
Filed: 1927-05-27
Abstract: 282,284. Boerner, A. May 27, 1927. Four-stroke-cycle engines.-In an engine having a double-acting piston working in tandem with one or more other single or double acting pistons, means are provided for varying the output by cutting out one or more of the working chambers. The second cylinder preferably fires between the times of firing of the first cylinder. Fig. 1 shows a double-acting piston 2, the valves 15, 17 at the lower side of which may he put out of action, a second piston 19 being arranged in tandem and having the valves 24, 25 for its upper side arranged to be put out of action. The piston 2 may he replaced by a pair of single-acting pistons each wording in a cylinder with the outer end closed. The inlet pipe 14 may have branches leading (1) to the carburettor for admission of the mixture, (2) to the atmosphere for admission of air which gives a braking effect when the exhaust valve is held closed on the return stroke, and (3) to the exhaust pipe 9 for admission of the exhaust gases from the upper chamber, and valve mechanism may be provided for establishing the desired connections.
Patent GB-588367-A (GB)
Title: Improvements in fire bricks and the production of same
IPC: F23M3/16
Filed: 1944-07-26
Abstract: A firebrick, for use in a furnace in which material is to be clinkered, comprises a monolith free from water produced from material substantially the same as that to be treated in the kiln by subjecting it to a temperature sufficient to produce clinkering.  The brick may be formed from a graded aggregate of the clinkered material mixed with cement also formed from the pulverized material; in order to increase the clinkering-temperature a small amount of lime may be added.  The material may be bonded by means of pitch or tar which is burnt out during firing.  If desired, the material may be fused and cast into required shapes.  Specification 470,028 is referred to.
Patent GB-990996-A (GB)
Title: Improvements relating to cooling arrangements for light projection apparatus
IPC: G03B21/16
Filed: 1961-04-23
Abstract: 990,996. Cooling projectors. FIRTH CLEVELAND Ltd. April 23, 1961 [April 23, I960], No. 14307/61. Heading G2J. Light projection apparatus is cooled using a transverse flow fan. As shown in Figs 1 and 2, in a slide projector comprising a housing 1 enclosing the usual lamp 2, condenser, heat filter and slide 5, a bladed cylindrical rotor 6 driven by a motor 15 is arranged to co-operate with guide walls 12, 13 of the housing 1 (in a manner fully described in Specification 876,611) to direct a stream of cooling air through the enclosure. Louvres 7 provided at the top of the housing are impenetrable by light. A protective grid 17 is provided in the air inlet 16. In a modification (Fig. 5) the housing 1 is enclosed in an outer casing 50 and cooling air for the projector enclosure is first drawn through the space 51 between the housing 1 and casing 50. In a modification (Fig. 6 not shown), two rotors driven by the same motor are provided, one for cooling the lamp and heat filter and the other for the slide 5. An air filter and diffuser may be associated with this latter rotor. Specification 757,543 also is referred to.
Patent GB-1380109-A (GB)
Title: Board edging machine
IPC: B27C5/06
Filed: 1972-03-28
Abstract: 1380109 Edge trimming of boards MILL & TIMBER PRODUCTS Ltd 28 March 1972 14361/72 Heading B5L A method of producing a variably bevelled edge 13.2 on a board 13, Fig. 1, comprises moving the board lengthwise on a support, moving a carriage transversely of the movement of the board, and rocking a cutter mounted on the carriage and arranged to cut the board edge. In apparatus for performing the method, Fig. 1, the board 13 is advanced between driven support rollers and pressure rollers 15À1 to 15À4 and in contact with an edge guide so that its opposite edge is fed past a rotary cutter 46. The cutter 46, Fig. 4, is driven by an electric motor 45 which is pivotally supported in side frames 39 on a slidable carriage 35. The pivoted position of the motor 45 is controlled by pins 58 thereon engaging in slots 59 in plates 57 carried by a platform 56 which is slidably mounted on the carriage 35 and is moved by the piston 62 of an hydraulic cylinder 61 secured to the carriage 35. Sliding movement of the carriage is controlled by a manually operated pivoted lever 49 connected to the carriage by a link 52, and rocking movement of the cutter relative to the carriage is controlled by push-buttons 69, 70 on the lever 49 which control a valve which directs pressure fluid to one or other end of the cylinder 61.
Patent GB-570600-A (GB)
Title: Improvements in or relating to worm gear mountings
IPC: F16H57/022
Filed: 1943-09-03
Abstract: 570,600. Worm gearing. MICHIGAN TOOL CO. Sept. 3, 1943, No. 14430. Convention date, Sept. 4, 1942. [Class 80 (i)] Consists in means for facilitating the assembly of a worm of hour-glass shape in mesh with a worm-gear within a housing. A housing 10 encloses a worm-gear 12, keyed to a shaft 14, engaged by a worm 20 on a shaft 22. The housing has aligned apertures 16, 18 at right angles to the shaft 14. Ball bearings 24 are fitted on a reduced portion of the shaft 22 with one of the inner races abutting an annular shoulder on the shaft, the bearings being held in position by a nut 26. The other end of the shaft also carries a ball bearing 28 secured by a nut 30. The worm, together with the ball bearings, is assembled outside the housing to a bearing retainer 32 which has a central aperture 34 therethrough terminating in a flange 36 against which the outer races of the ball bearings 24 are pressed by an annular flange on an end retainer 38. A seal 42 prevents leakage of oil. Retainer 32 has an annular axial portion 44, Figs. 2, 4, a part of which is relieved over 180 degrees. The sub-assembly is inserted through aperture 16 with the relieved portion 46 directed downwardly so as to keep the worm clear of the teeth of the gear 12, Fig. 2. The whole is then moved forward so that the unrelieved part of surface 44 is within the aperture 16. An end bearing cap 54 is then inserted in aperture 18 and secured by bolts 58 after which the bearing retainer 32 is rotated through 180 degrees to bring the unrelieved portion 44 to the bottom of aperture 16 as in Fig. 1 to take the thrust.
Patent GB-1492222-A (GB)
Title: Solid-state transistor circuit
IPC: H03K19/08
Filed: 1975-04-08
Abstract: 1492222 Transistor circuits BULOVA WATCH CO Inc 8 April 1975 [8 April 1974] 14433/75 Heading H3T A solid state circuit comprises two like, enhancement mode type MOS transistors 10, 11 with their source drain paths connected in series, the transistor 11 acting as a load for the transistor 10, both transistors being operated in the weak inversion region, i.e. with a gate bias below threshold such that the resistance presented by the transistor 11 varies with supply voltage in such a way as to compensate for changes in transconductance of transistor 10 so as to maintain the gain of the stage constant. In one embodiment, Fig. 8, a number of stages are connected in cascade with a negative feedback path 18, 19 to form an amplifier. The necessary gate bias may be obtained by a bias resistor, Fig. 4 (not shown) or by a potential divider comprising two further transistors Fig. 3 (not shown). In a second embodiment, Fig. 6, the stage is used in an oscillator including a crystal 14. The stage may also be used as a logic inverter, Fig. 7 (not shown).
Patent GB-739777-A (GB)
Title: Improved mounting or connector strip
IPC: B60J10/02
Filed: 1954-05-18
Abstract: 739,777. Glazing strips. GENERAL MOTORS CORPORATION. May 18, 1954 [June 9, 1953], No. 14497/54. Classes 20 (3) and 20(4). A resilient mounting strip 20, Fig. 3, for panels comprises a main body portion, two wing portions 26, 32, forming with lip portions 28, 34 of the body, longitudinal grooves 30, 36, to receive the edges of panels 22, 24, a longitudinal recess 40 into which the wing 26 is retractable to open the groove 30 and a longitudinal strut hingeable to the position shown in Fig. 3 in which it spreads apart the wings 26, 32, to close the grooves, and swingable to the position shown in Fig. 2, in which the wing 26 is held in recess 40 by the interengagement of complementary formations 59, 61 on wing 26 and strut 42 respectively. As shown, the complementary formations comprise a projection 59 and a depression 61. In a modification, Fig. 6, the formations comprise a sharp edge 68 on wing 62 which may engage under a projection 64 on strut 66. In assembling a glass panel 22 in an aperture in a vehicle body, the strip 20 is mounted on the body panel 24 and with the wing 26 as in Fig. 2, the panel 22 is placed in groove 30, the wing 26 or 62 and strut 42 or 66 being subsequently hinged to the position shown in Figs. 3 and 6. The grooves 30, 36 have tapering walls so that the grooves are widest at their bases. The strip may be made of rubber, synthetic rubber, or a plastic compound such as certain of the vinyls, and may be used to join panels of wood, metal or glass.
Patent GB-1156235-A (GB)
Title: Graft Copolymers of Multi-Unsaturated Hydrocarbon-Monoolefin Interpolymers
IPC: C08F255/00
Filed: 1967-03-30
Abstract: 1,156,235. Coating. PPG. INDUSTRIES, Inc. 30 March, 1967 [31 March, 1966], No. 14513/67. Heading B2K. [Also in Division C3] Phosphatized steel is i) coated in Example 1 with a dispersion in naphtha of an ethylenepropylene-dicyclopentadiene non-rubbery terpolymer grafted with methyl methacrylate and baked and ii) coated in Example 5 with a solution in xylene of the said terpolymer grafted with ethyl acrylate and acrylic acid and air-dried or baked.
Patent GB-722416-A (GB)
Title: Improvements in or relating to electric switches of the ceiling or pull-operated type
IPC: H01H17/16
Filed: 1951-06-19
Abstract: 722,416. Snap-action switches. HARWOOD, C. D., and CLANG, Ltd. June 18, 1952 [June 19, 1951], No. 14525/51. Class 38 (5) In a pull-operated switch, the chain 20 or the like is attached to an axially-moving plunger to which is pivoted at 25 a link 23 carrying a pin 24 which engages in a pocket-ended slot 11 in the rocking member 10 and when the chain is released a spring 18 pushes the plunger upwards into the position shown in which its end 21 engages one of two seatings 15 at opposite ends of the member 10.
Patent GB-515935-A (GB)
Title: Improvements in or relating to grilling devices
IPC: A47J37/06
Filed: 1938-05-16
Abstract: 515,935. Grilling- stoves. GAS LIGHT & COKE CO., and DUNNING, E. W. B. May 16, 1938, No. 14528. [Class 126] In a grilling fret heated by a gas or liquid-fuel burner and throwing heat downwardly, and comprising two superimposed, interconnected metal sheets 1, 5, projections 2 are formed on the underside of the lower sheet 1 by pressing out lugs therefrom and bending them downwardly. The lower sheet 1 may be of heat-resisting steel, and the upper sheet may be of mild steel and be corrugated and perforated. The lower sheet is held in grooves 7, 9 formed along two edges of the upper sheet, the support in one groove being loose to allow for expansion. The density of projections decreases towards the groove 7. Flanges 11, 12 forming supports at the ends of the sheet 5 are shaped so that when they rest on horizontal surfaces the fret slopes' down to the groove 9. Specification 430,843 is referred to.
Patent GB-512003-A (GB)
Title: Improvements in apparatus for twisting filaments, threads, bands and the like
IPC: D01H7/86
Filed: 1938-05-16
Abstract: 512,003. Twisting-apparatus for imparting two twists per revolution. COURTAULDS, Ltd., and MORTON, E. A. May 16, 1938, No. 14565. [Class 120 (ii)] In apparatus for imparting two twists per revolution wherein a conical guide surface 5 is carried by the rotating spindle and the delivery bobbin support 9, 12 is mounted on the spindle and prevented from rotating by means of a weight, the weight is constituted by liquid 10, such as mercury, carried in the support 9. The delivery bobbin is enclosed in a transparent shield 14. Specifications 338,570, [Class 120 (ii)], 380,708, 380,713, and 382,179 are referred to.
Patent GB-788041-A (GB)
Title: Improvements in suction cleaning apparatus
IPC: A47L7/00
Filed: 1956-05-10
Abstract: 788,041. Cleaning textile spinning machines. REITERER, F., and WINDISCH, L. May 10, 1956 [Sept. 22, 1955; March 1, 1956], No. 14575/56. Class 120(3) [Also in Group XXVIII] A suction duct running alongside a plurality of spinning machines is divided along a horizontal partition 3, Fig. 1. into lower and upper portions 1, 2 and the latter is divided by vertical partitions 6, Fig. 2 into sections each having branch ducts 7, 7<SP>1</SP> leading to a dust source and a valvecontrolled aperture 8 by which each section is connected in turn to the lower portion 1 of the main duct which in turn. is connected to a suction fan 5 and a filter 4. The valve 9 of each section of the upper duct portion is opened by a cam 10; all the cams being on a common shaft 11. In a modification the position 3 is channelshaped and provides a space between it and the side of the main duct and from which extend branch ducts leading to the dust source. In a further modification a travelling blower when adjacent a particular section connected to suction discharges against a baffle located near holes in the upper wall of said section.
Patent GB-110382-A (GB)
Title: Improvements in and relating to Processes and Apparatus for Expressing Liquid from Materials containing the same.
Inventor: HINCHLEY JOHN WILLIAM
IPC: C10G5/04
Filed: 1916-10-13
Abstract: 110,382. Hinchley, J. W., and Gorton, G. Oct. 13, 1916. Peat, preparing.-Relates to processes and apparatus set forth in Specifications 3998/15, 101,782, 108,503, [Class 46, Filtering &c.], 110,381, and 110,384, [Class 46, Filtering &c.]. Instead of admitting hot fluid to the compression chamber, cold air or cold water or liquid is introduced, or two or more hot or cold gaseous or liquid fluids are admitted successively Peat containing colloidal or gummy substances is compressed at about 25 lbs. per square inch, cold water at a higher pressure is admitted, the pressure is raised to 100 lbs. per square inch, hot water or steam is admitted, and the pressure is raised to 1100 lbs. per square inch.
Patent GB-321912-A (GB)
Title: Improvements in tin openers
IPC: B67B7/70
Filed: 1928-05-19
Abstract: 321,912. Taft, J., and Wiggin, W. May 19, 1928. Opening by cutting. - A tin - opener comprises a mounting A provided with a serrated wheel D turnable by a handle E and adapted to engage the underside of the beaded edge of a tin, the mounting carrying a slide L, formed with a cutting edge M, which can be moved up or down to engage the end of the tin near the edge by actuation of a screw G preferably formed with two or more intercoiled threads. The slide carries a rivet P which passes through a distance piece Q and rides in a vertical slot R in the mounting. The part Q carries an outwardly bent tongue S engaging over the edge of the mounting, and a second tongue a formed with a curved rib band adapted to ride on the bead of the can during the cutting operation. The forward edge of tongue a lies within a notch T in the edge of the cutter. In operation the cutter is screwed down until the point N of the blade penetrates the end of a tin and the handle E is turned until the end is cut out. The opener may be adapted to operate in both directions, the cutter then being formed with two slanting cutting edges meeting in a depending central point.
Patent GB-623946-A (GB)
Title: Improvements in permanent magnet structures
IPC: H01F7/02
Filed: 1947-06-03
Abstract: 623,946. Key-rings; fastenings. GOLDSCHMIDT, E. E. June 3, 1947, No. 14718. [Class 44] Also in Group XXXV] In a sock suspender, the sock is held between two permanent magnets 28 [see Group XXXV] joined by a flexible magnetic connector 26 to which leather strap 25 is fastened. Cheek pieces 27 increase the grip. A paper clip may be made similarly. A key-ring is also described in which a permanent bar magnet at one end of a flexible magnetic connector fits into an annular permanent magnet at the other end, Fig. 7 (not shown).
Patent GB-482085-A (GB)
Title: Improvements in methods of forming siliceous fibres, especially glass fibres
IPC: C03B37/02
Filed: 1937-05-27
Abstract: 482,085. Making glass threads or fibres. NAAMLOOZE VENNOOTSCHAP MAATSCHAPPIJ TOT BEHEER EN EXPLOITATIE VAN OCTROOIEN. May 27, 1937, No. 14729. Convention date, May 28, 1936. [Class 56] [Also in Group VIII] A method of forming fibres from siliceous material, especially glass, consists in flowing the material through small orifices in a container, drawing the stream mechanically to form fibres, and artificially cooling the streams with sufficient rapidity and intensity to harden the material close to the orifices. The glass flows from a furnace 10 through a metal bushing or thimble 12 provided with a series of fine nipples 13. The thimble is composed of a refractory metal which may be wetted by the molten glass, such as platinum or platinum alloys, and it is heated by the passage of an electric current to such a temperature that the glass is very fluid as it passes through the nipples 13. A blower 15, spaced below the nipples, directs a blast of air or steam on to the fibres into which the streams of glass are drawn by a rotating drum 26. The blast of gas, together with the air currents which are induced over the blower and downwards through the slot 17, cools the streams of glass and causes them to attenuate into fibres within a short distance of the nipples 13. Preferably the fibres are grouped into a single thread 27 by passing them through a guide or eye 25, and the thread may also pass through a reciprocating eye 27a to wind it uniformly on the drum 26. A brake 40a may be used to apply tension to the thread to allow, a higher speed of winding than usual. The fibres may be coated with a sizing such as oil, wax, rubber, resins, etc., either by a sprayer mounted close below the blower 15, or preferably by drawing them over a felt or pad 36 which is continually fed with the sizing-material, any excess material being removed from the thread by air jets 38 or a burner 38a. The size may be applied also by drawing the fibres 63, Fig. 7, over an orifice 56 in a receptacle 55 which is enclosed in a box 58 heated by an electric element 59. The fibres are grouped into a thread 64 and guided over the orifice by flanges 60. A receptacle 62 is provided to receive excess sizing-material.
Patent GB-1459642-A (GB)
Title: Process for the preparation of high molecular weight high  unsaturation isoolefin conjugated diene copolymers
IPC: C08F210/00
Filed: 1974-04-03
Abstract: 1459642 Isoolefin-conjugated diene copolymerization EXXON RESEARCH & ENG CO 3 April 1974 [6 April 1973] 14777/74 Heading C3P Isoolefins and conjugated dienes are copolymerized at a temperature below - 100‹ C. and in the presence of a hydrocarbylaluminium dihalide catalyst. The copolymerization is carried out as a solution process, in the presence of 5 to 40 volume per cent (based on solvent and monomers) of an inert solvent and to a conversion level of 2 to 20% to produce a polymer having a number average molecular weight of at least 120,000 and an unsaturation (i.e. diene) level of 8 to 40 mole per cent. Examples refer to the copolymerization of isobutylene with isoprene or cyclopentadiene or a mixture thereof in the presence of methyl cyclohexane or heptane as cosolvent and of EtAlCl 2 , MeAlCl 2 , iBuAlCl 2 , EtAlBr 2  or (comparative) EtAlI 2 .
Patent GB-853361-A (GB)
Title: Improvements in or relating to electric signal transmission systems and to repeatersor amplifiers therefor
IPC: H04B17/40
Filed: 1959-05-01
Abstract: 853,361. Unattended repeaters. WESTERN ELECTRIC CO. Inc. May 1, 1959 [May 15, 1958], No. 14897/59. Drawings to Specification. Class 40 (4). In an electric signal transmission system, a repeater comprises an amplifier, a temperaturesensitive resonant device for producing an irregularity in the gain-frequency characteristic of the amplifier, and means for controlling the temperature of the resonant device (and hence the frequency at which the irregularity occurs) in accordance with the signal level at the amplifier. The resonant device preferably comprises a piezo-electric crystal, as described in Specification 702,397 and may be connected in shunt across the feed-back circuit or in series or shunt in the input or output circuit. The crystal is enclosed in an insulated envelope with a heating coil controlled by either the input signal or the output signal of the amplifier. In a modification, two such devices are provided in order to measure both the input and the output of the amplifier. The Specification describes a method of using such devices to supervise the performance of a plurality of unattended repeaters spaced along a transmission channel.
Patent GB-578326-A (GB)
Title: Improvements relating to optical glasses
IPC: G02B3/00
Filed: 1944-08-04
Abstract: 578,326. Optical glass. CHANCE BROS., Ltd., BASTICK, R. E., and WANG, T. H. Aug. 4,1944, No. 14941. [Class 56] An optical glass particularly for photographic lenses is formed from SiO2 15-25 per cent B2O3 5-25 per cent, BaO 5-50 per cent and ThO2 5-20 per cent. Other alkaline earth oxides and zinc oxide and/or lead oxide which together with the BaO amount to. at least 35 per cent of the composition may, optionally, be present and zirconia may be added to minimise risk of devitrification. The refractive index of the glass is greater than 1.746-0.0021 v and v (Abbe constant) is between 35 and 60.
Patent GB-1179292-A (GB)
Title: Agitator Grinder for Fine Grinding and/or Dispersing.
Inventor: BRUECKNER ERNST
IPC: B02C17/16
Filed: 1967-03-31
Abstract: 1,179,292. Grinding; mixing apparatus; stirrers. E. NETZSOH [trading as NETZSCH MASCHINENFABRIK GEB.] 31 March, 1967, No. 14981/67. Headings B1C and B2A. A mill has a vertical container 1, Fig. 1, for the grinding bodies 7, Fig. 2, and a shaft 2 with agitating elements 3-6. The outer edge of each agitating element extends in a planar spiral, and the ends are arranged on a helix, i.e. they trace a helix in the container on rotation of the shaft. The agitators may have holes or slots and be corrugated on their upper and lower sides, and may comprise rods 11, 12, 13 formed in planar spirals, Fig. 3.